1217141 has 2 divisors, whose sum is σ = 1217142. Its totient is φ = 1217140.

The previous prime is 1217131. The next prime is 1217143. The reversal of 1217141 is 1417121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164241 + 52900 = 1079^2 + 230^2 .

It is a cyclic number.

It is not a de Polignac number, because 1217141 - 2⁶ = 1217077 is a prime.

Together with 1217143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1217143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608570 + 608571.

It is an arithmetic number, because the mean of its divisors is an integer number (608571).

2^1217141 is an apocalyptic number.

It is an amenable number.

1217141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217141 is an equidigital number, since it uses as much as digits as its factorization.

1217141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56, while the sum is 17.

The square root of 1217141 is about 1103.2411341135. The cubic root of 1217141 is about 106.7694397920.

The spelling of 1217141 in words is "one million, two hundred seventeen thousand, one hundred forty-one".